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        <td><h2><font color="#FFFFFF">Continuous and Discrete Variables</font></h2></td>
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<p><em>Variables</em> in Tetrad specify the range of data points that can be stored in a column. Two types of variables
    are used: <em>continuous</em> and <em>discrete</em>. Continuous variables accept real numbers as values; discrete
    variables accept string values from a specified list of values.</p>
<p>Discrete variables may look like continuous continuous variables if they contain string values that look like
    strings. In the data editor, it is easy to tell the two apart, since discrete variables are in columns with names
    ending in &quot;-T.&quot;</p>
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